This page lists the calculation from survey positions to Absolut Detector Position. For staggered Hodoscope Slabs the centre is given as the mid-plane between slabs

Outer Hodoscopes

HO04Y1 (Jura)

The survey points are like given in (1)

Calculation of Z-Position

SurveyPoints_(JB/SB) - targetLength - 50mm

History of Values

Date Document Point Z-Value target_length Z-corrected_value Z-midplane_center
15.11.2016 (1) HO04Y1_JB_D35T10 39.6615 35.0mm 39.6265 39.5765
15.11.2016 (1) HO04Y1_SB_D35T10 39.6375 35.0mm 39.6025 39.5525
23.09.2020 (4) H04Y1-BSD 39.6461 40.0mm 39.6061 39.5561
23.09.2020 (4) H04Y1-BJD 39.6633 40.0mm 39.6233 39.5733
23.09.2020 (4) H04Y1-TJD 39.682 40.0mm 39.6420 39.5920

HO04Y2 (Saleve)

The survey points are like given in (1)

Calculation of Z-Position

SurveyPoints_(JB/SB) - targetLength - 80mm

History of Values

Date Document Point Z-Value target_length Z-corrected_value Z-midplane_center
15.11.2016 (1) HO04Y2_JB_D35T10 40.1019 85.0mm 40.0169 39.9369
15.11.2016 (1) HO04Y2_SB_D35T10 40.0552 85.0mm 39.9702 39.8902
23.09.2020 (4) H04Y2-BJD 40.0195 40.0mm 39.9795 39.8995
23.09.2020 (4) H04Y2-BSD 40.0046 40.0mm 39.9646 39.8846
23.09.2020 (4) H04Y2-TSD 39.9971 40.0mm 39.9571 39.8771

Difference between HO04Y1 and HO04Y2:

Mean 15.11.2016 HO04Y1 39.5645m
Mean 15.11.2016 HO04Y2 39.9136m
Difference: 0.3491m

Mean 23.09.2020 HO04Y1 39.5738m
Mean 23.09.2020 HO04Y2 39.8871m
Difference: 0.3132m

Las Hodoscopes

HG01Y1

2010-2018

SurveyPoints + targetLength - 4mm

Staggering of Groups:

Group 1,3,5 Z-midplane_center + 10mm

Group 2,4 Z-midplane_center - 10mm

History of Values

Date Document Point Z-Value target_length Z-corrected_value Z-midplane_center
15.04.2010 (3) H1_TJU 5.8249 20.0mm (U) 5.8449 5.8409
15.04.2010 (3) H1_BJU 5.8345 20.0mm (U) 5.8545 5.8505
15.04.2010 (3) H1_TSU 5.8233 20.0mm (U) 5.8433 5.8393
04.10.2012 (2) H1_U_J_T 5.7758 70.0mm (U) 5.8458 5.8418
04.10.2012 (2) H1_U_J_B 5.8347 20.0mm (U) 5.8547 5.8507
04.10.2012 (2) H1_U_S_B 5.8347 70.0mm (U) 5.857 5.853

HG02Y1

SurveyPoints + targetLength + 55.5mm

HG02Y2

SurveyPoints + targetLength -3.5mm (before 2020 -2.5mm since reglueing of the fiducial mark)

Documents:

(1) 15.11.2016 HO04, HL04, HL05

(2) H1 MeasurementofSeptember-October, 2012

(3) 15.04 - 21.05.2010 H1, H2

(4) 23.09.2020 H2, H4, SM2

-- BenjaminMoritzVeit - 2020-09-15

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Topic revision: r4 - 2020-09-30 - BenjaminMoritzVeit
 
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